/* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.activiti.engine.impl.persistence.entity;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.ActivitiIllegalArgumentException;
import org.activiti.engine.delegate.TaskListener;
import org.activiti.engine.delegate.event.ActivitiEventType;
import org.activiti.engine.delegate.event.impl.ActivitiEventBuilder;
import org.activiti.engine.impl.Page;
import org.activiti.engine.impl.TaskQueryImpl;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.AbstractManager;
import org.activiti.engine.task.Task;
/**
* @author Tom Baeyens
*/
public class TaskEntityManager extends AbstractManager {
@SuppressWarnings({ "unchecked", "rawtypes" })
public void deleteTasksByProcessInstanceId(String processInstanceId, String deleteReason, boolean cascade) {
List<TaskEntity> tasks = (List) getDbSqlSession()
.createTaskQuery()
.processInstanceId(processInstanceId)
.list();
String reason = (deleteReason == null || deleteReason.length() == 0) ? TaskEntity.DELETE_REASON_DELETED : deleteReason;
for (TaskEntity task: tasks) {
deleteTask(task, reason, cascade);
}
}
public void deleteTask(TaskEntity task, String deleteReason, boolean cascade) {
if (!task.isDeleted()) {
task.fireEvent(TaskListener.EVENTNAME_DELETE);
task.setDeleted(true);
CommandContext commandContext = Context.getCommandContext();
String taskId = task.getId();
List<Task> subTasks = findTasksByParentTaskId(taskId);
for (Task subTask: subTasks) {
deleteTask((TaskEntity) subTask, deleteReason, cascade);
}
commandContext
.getIdentityLinkEntityManager()
.deleteIdentityLinksByTaskId(taskId);
commandContext
.getVariableInstanceEntityManager()
.deleteVariableInstanceByTask(task);
if (cascade) {
commandContext
.getHistoricTaskInstanceEntityManager()
.deleteHistoricTaskInstanceById(taskId);
} else {
commandContext
.getHistoryManager()
.recordTaskEnd(taskId, deleteReason);
}
getDbSqlSession().delete(task);
if(commandContext.getEventDispatcher().isEnabled()) {
commandContext.getEventDispatcher().dispatchEvent(
ActivitiEventBuilder.createEntityEvent(ActivitiEventType.ENTITY_DELETED, task));
}
}
}
public TaskEntity findTaskById(String id) {
if (id == null) {
throw new ActivitiIllegalArgumentException("Invalid task id : null");
}
return (TaskEntity) getDbSqlSession().selectById(TaskEntity.class, id);
}
@SuppressWarnings("unchecked")
public List<TaskEntity> findTasksByExecutionId(String executionId) {
return getDbSqlSession().selectList("selectTasksByExecutionId", executionId);
}
@SuppressWarnings("unchecked")
public List<TaskEntity> findTasksByProcessInstanceId(String processInstanceId) {
return getDbSqlSession().selectList("selectTasksByProcessInstanceId", processInstanceId);
}
@Deprecated
public List<Task> findTasksByQueryCriteria(TaskQueryImpl taskQuery, Page page) {
taskQuery.setFirstResult(page.getFirstResult());
taskQuery.setMaxResults(page.getMaxResults());
return findTasksByQueryCriteria(taskQuery);
}
@SuppressWarnings("unchecked")
public List<Task> findTasksByQueryCriteria(TaskQueryImpl taskQuery) {
final String query = "selectTaskByQueryCriteria";
return getDbSqlSession().selectList(query, taskQuery);
}
@SuppressWarnings("unchecked")
public List<Task> findTasksAndVariablesByQueryCriteria(TaskQueryImpl taskQuery) {
final String query = "selectTaskWithVariablesByQueryCriteria";
// paging doesn't work for combining task instances and variables due to an outer join, so doing it in-memory
if (taskQuery.getFirstResult() < 0 || taskQuery.getMaxResults() <= 0) {
return Collections.EMPTY_LIST;
}
int firstResult = taskQuery.getFirstResult();
int maxResults = taskQuery.getMaxResults();
// setting max results, limit to 20000 results for performance reasons
taskQuery.setMaxResults(20000);
taskQuery.setFirstResult(0);
List<Task> instanceList = getDbSqlSession().selectListWithRawParameterWithoutFilter(query, taskQuery, taskQuery.getFirstResult(), taskQuery.getMaxResults());
if (instanceList != null && !instanceList.isEmpty()) {
if (firstResult > 0) {
if (firstResult <= instanceList.size()) {
int toIndex = firstResult + Math.min(maxResults, instanceList.size() - firstResult);
return instanceList.subList(firstResult, toIndex);
} else {
return Collections.EMPTY_LIST;
}
} else {
int toIndex = Math.min(maxResults, instanceList.size());
return instanceList.subList(0, toIndex);
}
}
return Collections.EMPTY_LIST;
}
public long findTaskCountByQueryCriteria(TaskQueryImpl taskQuery) {
return (Long) getDbSqlSession().selectOne("selectTaskCountByQueryCriteria", taskQuery);
}
@SuppressWarnings("unchecked")
public List<Task> findTasksByNativeQuery(Map<String, Object> parameterMap, int firstResult, int maxResults) {
return getDbSqlSession().selectListWithRawParameter("selectTaskByNativeQuery", parameterMap, firstResult, maxResults);
}
public long findTaskCountByNativeQuery(Map<String, Object> parameterMap) {
return (Long) getDbSqlSession().selectOne("selectTaskCountByNativeQuery", parameterMap);
}
@SuppressWarnings("unchecked")
public List<Task> findTasksByParentTaskId(String parentTaskId) {
return getDbSqlSession().selectList("selectTasksByParentTaskId", parentTaskId);
}
public void deleteTask(String taskId, String deleteReason, boolean cascade) {
TaskEntity task = Context
.getCommandContext()
.getTaskEntityManager()
.findTaskById(taskId);
if (task!=null) {
if(task.getExecutionId() != null) {
throw new ActivitiException("The task cannot be deleted because is part of a running process");
}
String reason = (deleteReason == null || deleteReason.length() == 0) ? TaskEntity.DELETE_REASON_DELETED : deleteReason;
deleteTask(task, reason, cascade);
} else if (cascade) {
Context
.getCommandContext()
.getHistoricTaskInstanceEntityManager()
.deleteHistoricTaskInstanceById(taskId);
}
}
public void updateTaskTenantIdForDeployment(String deploymentId, String newTenantId) {
HashMap<String, Object> params = new HashMap<String, Object>();
params.put("deploymentId", deploymentId);
params.put("tenantId", newTenantId);
getDbSqlSession().update("updateTaskTenantIdForDeployment", params);
}
}